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13-05-2022
Chemistry

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What does the number at the end of an element mean? (For example, Hydrogen-3)

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nevinjiju2011 nevinjiju2011

13-05-2022

Answer:

The top number is the total mass number, particles in an atom of an element that have mass are protons and neutrons.

Explanation:

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Good evening! Can someone please answer this, ill give you brainliest and your earning 50 points. Would be very appreciated.

Please help as you can